x27;t care about them
anyway).
See here for more details: https://www.tcm.phy.cam.ac.uk/sw/inodes64.html
-Original Message-
From: Yan, Zheng
Sent: Wednesday, October 16, 2019 8:07 PM
To: Dan van der Ster
Cc: ceph-users
Subject: [ceph-users] Re: CephFS and 32-bit Inode Numbers
On M
On Mon, Oct 14, 2019 at 7:19 PM Dan van der Ster wrote:
>
> Hi all,
>
> One of our users has some 32-bit commercial software that they want to
> use with CephFS, but it's not working because our inode numbers are
> too large. E.g. his application gets a "file too big" error trying to
> stat inode
t.
>
> Greetings
> Ingo
>
> - Ursprüngliche Mail -
> Von: "Nathan Fish"
> An: "ceph-users"
> Gesendet: Dienstag, 15. Oktober 2019 19:40:05
> Betreff: [ceph-users] Re: CephFS and 32-bit Inode Numbers
>
> I'm not sure exactly what would
Data is correct.
Greetings
Ingo
- Ursprüngliche Mail -
Von: "Nathan Fish"
An: "ceph-users"
Gesendet: Dienstag, 15. Oktober 2019 19:40:05
Betreff: [ceph-users] Re: CephFS and 32-bit Inode Numbers
I'm not sure exactly what would happen on an inode collision, but I'
Once upon a time ceph-fuse did its own internal hash-map of live
inodes to handle that (by just remembering which 64-bit inode any
32-bit one actually referred to).
Unfortunately I believe this has been ripped out because it caused
problems when the kernel tried to do lookups on 32-bit inodes that
Den tis 15 okt. 2019 kl 19:40 skrev Nathan Fish :
> I'm not sure exactly what would happen on an inode collision, but I'm
> guessing Bad Things. If my math is correct, a 2^32 inode space will
> have roughly 1 collision per 2^16 entries. As that's only 65536,
> that's not safe at all.
>
Yeah, the
I'm not sure exactly what would happen on an inode collision, but I'm
guessing Bad Things. If my math is correct, a 2^32 inode space will
have roughly 1 collision per 2^16 entries. As that's only 65536,
that's not safe at all.
On Mon, Oct 14, 2019 at 8:14 AM Dan van der Ster wrote:
>
> OK I found
OK I found that the kernel has an "ino32" mount option which hashes 64
bit inos to 32-bit space.
Has anyone tried this?
What happens if two files collide?
-- Dan
On Mon, Oct 14, 2019 at 1:18 PM Dan van der Ster wrote:
>
> Hi all,
>
> One of our users has some 32-bit commercial software that they
